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| article xml uploaded. | 5 December 2017 12:15 CET | Update | https://www.mdpi.com/2071-1050/9/12/2217/xml |
| article pdf uploaded. | 5 December 2017 12:15 CET | Updated version of record | https://www.mdpi.com/2071-1050/9/12/2217/pdf |
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| article pdf uploaded. | 2 December 2017 09:53 CET | Updated version of record | https://www.mdpi.com/2071-1050/9/12/2217/pdf-vor |
| article pdf uploaded. | 30 November 2017 11:45 CET | Version of Record | https://www.mdpi.com/2071-1050/9/12/2217/pdf-vor |
